Palais-Hotel Erzherzog Johann
Graz, Austria
Built 1852 · Last completed renovation 2002
Palais-Hotel Erzherzog Johann in Graz was last renovated in 2002, and originally built in 1852. Its HotelChrono freshness score is 1.6/10 — every date linked to a cited source.
Renovation forecast · estimate
Likely due for renovation now
Past its typical ~8-year renovation cycle. A model estimate, not a sourced fact.
Location
Satellite view · Graz, Austria
Timeline
1852
Opened as elegant hotel
2002
Comprehensive renovation completed
⚖️ Star classification · Austria
Austria uses the Hotelstars Union system. A rating is valid for 3–6 years (5★ Superior: 3 years), after which re-classification is mandatory.
System: Hotelstars Union (WKO — Austrian Hotel Association)
“The rating has a limited validity of between three and six years and the classification procedure must be regularly repeated. For 5*Superior it is valid for three years.”
How this score is computed
Every figure here traces back to the sourced renovation year above — no hidden weighting, no black box. Recompute it yourself. See the full methodology →
What changed in the 2002 renovation
“Year Built: 1852 · Year Renovated: 2002”— source · retrieved 2026-06-23
Scope is quoted verbatim from the cited source — we never guess what a renovation covered.
Facts
Stars
4★
Built
Sourced1852
Last completed renovation
Estimated2002
Sources
Our iron rule: no quote, no data. Every date links back to the exact sentence it came from.
“Year Built: 1852 · Year Renovated: 2002”
“In 1852 Ferdinand Sonnhammer rented the building and finally purchased it in 1877. It was him that converted the feudal palace into an elegant hotel”
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Frequently asked
When was Palais-Hotel Erzherzog Johann built?+
Palais-Hotel Erzherzog Johann (Graz, Austria) was built in 1852.
How old is Palais-Hotel Erzherzog Johann?+
Palais-Hotel Erzherzog Johann is 174 years old — it was built in 1852 and last renovated in 2002. Age measures the building; the Chrono Score measures how fresh it feels today.
When was Palais-Hotel Erzherzog Johann last renovated?+
Its most recent completed renovation was in 2002.
What is the Chrono Score of Palais-Hotel Erzherzog Johann?+
Its Chrono Score is 1.6/10 (Tired) — a pure freshness metric, separate from its 4-star rating.